Electricity

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Across
  1. 4. Energy which an object possesses because of its position relative to the ground
  2. 6. Rate of flow of charge
  3. 7. Angle of incidence in the optically denser medium for which the angle of refraction in the optically less dense medium is 90º
  4. 10. Sound wave which has a frequency higher than 20 kHz
  5. 11. Attractive or repulsive force that electric charges exert on one another
  6. 12. Number of complete vibrations or waves generated per sec
  7. 14. push or pull that an object acts on another
  8. 15. Rate of change of displacement in a specified direction
  9. 17. When an object is in equilibrium, the sum of all clockwise moments about any pivot is equal to the sum of all anti-clockwise moments about the same pivot
  10. 19. Amount of thermal energy required to raise temperature of a unit mass of a substance by 1ºC or 1K
  11. 20. Amount of substance/matter in a body
  12. 21. Temperature at which pure boiling water turns into steam at standard atmospheric pressure. It is assigned the value of 100ºC
  13. 25. Amount of thermal energy required to raise temperature of a substance by 1ºC or 1K
  14. 26. Maximum displacement from rest position or equilibrium position to crest or trough
  15. 28. Force of gravity acting upon a body
  16. 30. Total length covered by a moving object irrespective of the direction of motion
  17. 32. Turning effect of a force. Product of the force & the perpendicular distance from the line of action of force to the pivot
  18. 35. Regions in a longitudinal wave that have slightly higher pressure
  19. 37. Process by which energy is supplied to change the state of a subs. from solid to liquid without a change in temperature
  20. 38. Reluctance of an object to change its state of rest or motion
  21. 40. Sound wave reflected off a surface
  22. 41. Imaginary line on a wave that joins all points with the same phase of vibration
  23. 44. Mass per unit volume of substance
  24. 47. Measure of how hot or cold a body is
  25. 49. Distance measured in a straight line & in a specified direction
  26. 50. Process by which energy is released to change the state of a substance from gas to liquid without a change in temperature
  27. 51. Ratio of speed of light in vacuum to speed of light in medium
  28. 52. Devices that transforms energy from one form to another
  29. 55. Haphazard movement of microscopic particles suspended in fluid due to uneven collision of suspended particles by unseen, fast moving fluid molecules
  30. 57. Regions in a longitudinal wave that have slightly lower pressure
  31. 58. Transfer of thermal energy by EM waves
  32. 60. Energy cannot be created or destroyed but only changes from one form to another, total energy in a system remains constant
  33. 61. Product of the force & distance moved in the direction of the force
  34. 62. Energy needed to change the state of a unit mass of a substance from solid to liquid without a change in temperature
  35. 64. Ratio of potential difference across the component to the current flowing through it
  36. 66. Energy needed to change the state of a unit mass of a substance from liquid to gas without a change in temperature
Down
  1. 1. Transfer of thermal energy through a medium from one particle to another
  2. 2. A wave which travels in a direction parallel to the direction of vibration of the particles
  3. 3. Rate of change of velocity
  4. 5. Time taken to generate one complete wave
  5. 8. All matter is made up of large number of tiny atoms or molecules which are in continuous motion
  6. 9. Energy possessed by objects in motion
  7. 13. Capacity to do work
  8. 16. Temperature of pure melting ice at standard atmospheric pressure. It is assigned the value of 0ºC
  9. 18. Current through a metallic conductor is directly proportional to the potential difference across the ends of the conductor, provided the temperature & other physical conditions remain constant
  10. 22. Energy needed to change the state of a substance from liquid to gas without a change in temperature
  11. 23. Region in which an electric charge experiences an electric force
  12. 24. Phenomenon where the angle of incidence is greater than the critical angle & light is seen to be reflected within the optically denser medium
  13. 27. The internal energy of a body. It is the combination of total kinetic & potential energy of molecules within it
  14. 29. A wave which travels in a direction perpendicular to the direction of vibration of the particles
  15. 31. Path a positive charge would take if it is free to move
  16. 33. Force per unit area
  17. 34. Energy needed to change the state of a substance from solid to liquid without a change in temperature
  18. 36. Region where a mass experiences a force due to gravitational attraction
  19. 39. Horizontal distance between 2 successive crests or troughs
  20. 42. Force that resists relative motion of objects that are in contact of each other
  21. 43. Work done to drive a unit charge through a component
  22. 45. The point through which the entire weight of the object appears to act
  23. 46. Process by which energy is supplied to change the state of a substance from liquid to gas without a change in temperature
  24. 48. Rate of doing work or Rate of energy converted
  25. 53. Ratio of useful energy output to the total energy input
  26. 54. Transfer of thermal energy through a medium by the movement of heated gas or liquid
  27. 56. Process by which energy is released to change the state of a substance from liquid to solid without a change in temperature
  28. 59. Longitudinal wave which transfers energy from one point to another through a series of rarefactions & compressions
  29. 63. Work done by a dry cell to drive a unit charge around a complete circuit
  30. 65. Rate of change of distance